Base | Representation |
---|---|
bin | 10110101110011111… |
… | …11101111111010101 |
3 | 1011111022202022011212 |
4 | 23113033331333111 |
5 | 144442003101401 |
6 | 5334414311205 |
7 | 611233451045 |
oct | 132717757725 |
9 | 34438668155 |
10 | 12201222101 |
11 | 51a12a9832 |
12 | 24461b8505 |
13 | 11c5a59163 |
14 | 83a63b725 |
15 | 4b626bdbb |
hex | 2d73fdfd5 |
12201222101 has 8 divisors (see below), whose sum is σ = 12332521344. Its totient is φ = 12070170000.
The previous prime is 12201222073. The next prime is 12201222139. The reversal of 12201222101 is 10122210221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12201222101 - 26 = 12201222037 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12201222181) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38351 + ... + 160851.
It is an arithmetic number, because the mean of its divisors is an integer number (1541565168).
Almost surely, 212201222101 is an apocalyptic number.
It is an amenable number.
12201222101 is a deficient number, since it is larger than the sum of its proper divisors (131299243).
12201222101 is a wasteful number, since it uses less digits than its factorization.
12201222101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 123571.
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 12201222101 its reverse (10122210221), we get a palindrome (22323432322).
The spelling of 12201222101 in words is "twelve billion, two hundred one million, two hundred twenty-two thousand, one hundred one".
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